Bathroom scale



FIG. 1 is a top plan view of a bathroom scale showing my new design;

FIG. 2 is a bottom plan view;

FIG. 3 is a front elevational view;

FIG. 4 is a rear elevational view; and

FIG. 5 is a left side elevational view thereof, the right side elevational view being a mirror image. 

The ornamental design for a bathroom scale, as shown. 